debtor vs deadbeat

debtor and deadbeat both are nouns.

Word	Noun	Adjective	Verb	Adverb
debtor	Yes	No	No	No
deadbeat	Yes	No	No	No

As nouns, deadbeat is a hyponym of debtor; that is, deadbeat is a word with a more specific, narrower meaning than debtor:

debtor: a person who owes a creditor; someone who has the obligation of paying a debt
deadbeat: someone who fails to meet a financial obligation

Other hyponyms of debtor include defaulter, fly-by-night, mortgager, mortgagor.

debtor (noun)	deadbeat (noun)
a person who owes a creditor; someone who has the obligation of paying a debt	someone who fails to meet a financial obligation